Cov khoom siv hluav taws xob me me (MCBs)yog ib feem tseem ceeb ntawm cov tshuab hluav taws xob niaj hnub no. Raws li lub npe qhia, nws yog lub qhov hluav taws xob me me uas txiav tawm tam sim ntawd thaum pom qhov txhaum. Tsab xov xwm no yuav tshawb nrhiav qhov tseem ceeb thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob me me hauv kev tswj hwm kev nyab xeeb hluav taws xob.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev sivcov khoom siv hluav taws xob me meyog lawv lub peev xwm los tiv thaiv cov circuits ntawm overcurrent thiab luv circuits. Cov khoom siv no yog tsim los tswj hwm qhov ntsuas tam sim no tshwj xeeb, kom ntseeg tau tias tam sim no ntws los ntawm lub circuit tsis tshaj qhov txwv uas tau teem tseg. Yog tias muaj overload lossis luv circuit, lubMCBkev mus los, cuam tshuam kev ntws ntawm hluav taws xob thiab tiv thaiv tej yam txaus ntshai xws li kub dhau lossis hluav taws xob.
Cov khoom siv hluav taws xob me mesiv rau ntau yam kev siv, los ntawm kev nyob hauv tsev mus rau kev lag luam. Hauv kev tsim kho vaj tse,Cov MCBfeem ntau pom muaj nyob rau hauv cov switchboards los tiv thaiv cov circuits uas muab fais fab rau ntau qhov chaw hauv tsev. Qhov no ua rau nws yooj yim los txheeb xyuas thiab cais cov circuits uas tsis zoo, txo qhov kev pheej hmoo ntawm kev raug mob hluav taws xob.
Hauv cov chaw ua haujlwm, cov cuab yeej hluav taws xob me me siv los tiv thaiv cov tshuab thiab cov khoom siv. Cov khoom siv no tsis yog tsuas yog tiv thaiv cov voj voog xwb, tab sis kuj tseem cuam tshuam lub zog thaum muaj hluav taws xob tsis zoo, tiv thaiv kev puas tsuaj rau cov tshuab kim. Los ntawm kev ntes thiab cais cov voj voog tsis zoo sai sai,Cov MCBpab ua kom kev ua haujlwm du thiab tiv thaiv kom tsis txhob muaj sijhawm them nqi ntau.
Cov yam ntxwv ntawm cov khoom siv hluav taws xob me me ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov tshuab hluav taws xob. Muaj ntau hom sib txawvCov MCBxaiv los ntawm, txhua tus nrog nws tus kheej txoj kab nkhaus qhia txog qhov ceev ntawm kev teb rau ntau hom kev ua yuam kev. Qhov no ua rau nws muaj peev xwm xaiv MCB uas haum rau cov kev xav tau tshwj xeeb ntawm lub voj voog, txawm tias nws yog cov khoom siv hluav taws xob rhiab heev lossis lub cev muaj zog nrog cov dej ntws nkag.
Tsis tas li ntawd xwb,cov khoom siv hluav taws xob me memuaj qhov zoo ntawm kev rov teeb tsa dua, tsis zoo li cov fuses uas yuav tsum tau hloov thaum lawv mus ncig. Thaum qhov txhaum tau raug tshem tawm thiab qhov teeb meem hauv paus tau daws lawm,MCBtuaj yeem rov pib dua los ntawm tes los ntawm kev tig lub khawm rov qab. Qhov no ua rau kom yooj yim dua thiab txo cov nqi kho rau lub sijhawm ntev.
Lwm yam uas yuav tsum xav txog thaum tham txog kev sib deevcov khoom siv hluav taws xob me meyog lawv qhov me me. Tsis zoo li cov khoom siv hluav taws xob ib txwm muaj uas loj thiab siv ntau qhov chaw,Cov MCBLawv me me thiab yooj yim rau nruab rau hauv cov switchboards. Qhov no ua rau lawv yog thawj qhov kev xaiv thaum qhov chaw tsawg, xws li hauv cov tsev nyob lossis cov tsev lag luam uas muaj cov txee hluav taws xob tsawg.
Xaus lus,cov khoom siv hluav taws xob me meyog cov khoom tseem ceeb hauv kev tswj hwm kev nyab xeeb hluav taws xob hauv ntau yam kev siv. Lawv lub peev xwm los tiv thaiv overcurrent thiab luv luv circuits, nrog rau cov yam ntxwv resettable thiab me me, ua rau lawv tsis tseem ceeb hauv cov tshuab hluav taws xob niaj hnub. Txawm hais tias nyob hauv tsev, chaw ua haujlwm lossis chaw ua haujlwm,Cov MCBxyuas kom meej tias cov circuits ua haujlwm zoo thaum txo cov kev phom sij.
Lub sijhawm tshaj tawm: Cuaj hlis-06-2023